Douai Health Impact
Douai averaged 9.4 ug/m3 PM2.5, equal to 1.9x the WHO annual PM2.5 guideline and about 0.4 cigarettes per day by the simple AQI Now indicator. The page uses OpenAQ-derived daily history for 1 mapped monitoring location in Hauts-de-France, France.
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Average EPA AQI
43
Rank 40 of 272 cities by average AQI
PM2.5
9.4
ug/m3 annualized city average
Seasonality
January
Cleanest: April
Health indicator
0.4
cigarette-equivalent per day
Yearly EPA AQI trend
Seasonal EPA AQI heatmap
JanFebMarAprMayJunJulAugSepOctNovDec
Douai
58
37
39
30
44
37
34
38
39
44
55
51
What this health page measures
Translate PM2.5 exposure into WHO exceedance and a simple cigarette-equivalent indicator.
For Douai, the current global analytics build covers 282 daily rows from 2024-01-02 to 2024-12-31. The calculations normalize PM2.5 and PM10 observations into US EPA AQI bands so country, city, and tool pages use one consistent method.